[Intel-xe] [PATCH 1/5] drm/i915/display: Move display device info to header under display/

[Lucas De Marchi]

On Wed, May 17, 2023 at 08:18:00PM -0700, Matt Roper wrote:
>Moving display-specific substruture definitions will help keep display
>more self-contained and make it easier to re-use in other drivers (i.e.,
>Xe) in the future.
>
>Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
>---
> .../drm/i915/display/intel_display_device.h   | 60 +++++++++++++++++++
> drivers/gpu/drm/i915/intel_device_info.h      | 49 +--------------
> 2 files changed, 62 insertions(+), 47 deletions(-)
> create mode 100644 drivers/gpu/drm/i915/display/intel_display_device.h
>
>diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h
>new file mode 100644
>index 000000000000..c689d582dbf1
>--- /dev/null
>+++ b/drivers/gpu/drm/i915/display/intel_display_device.h
>@@ -0,0 +1,60 @@
>+/* SPDX-License-Identifier: MIT */
>+/*
>+ * Copyright © 2023 Intel Corporation
>+ */
>+
>+#ifndef __INTEL_DISPLAY_DEVICE_H__
>+#define __INTEL_DISPLAY_DEVICE_H__
>+
>+#include <linux/types.h>
>+
>+#include "display/intel_display_limits.h"
>+
>+#define DEV_INFO_DISPLAY_FOR_EACH_FLAG(func) \
>+	/* Keep in alphabetical order */ \
>+	func(cursor_needs_physical); \
>+	func(has_cdclk_crawl); \
>+	func(has_cdclk_squash); \
>+	func(has_ddi); \
>+	func(has_dp_mst); \
>+	func(has_dsb); \
>+	func(has_fpga_dbg); \
>+	func(has_gmch); \
>+	func(has_hotplug); \
>+	func(has_hti); \
>+	func(has_ipc); \
>+	func(has_overlay); \
>+	func(has_psr); \
>+	func(has_psr_hw_tracking); \
>+	func(overlay_needs_physical); \
>+	func(supports_tv);
>+
>+struct intel_display_device_info {
>+	u8 abox_mask;
>+
>+	struct {
>+		u16 size; /* in blocks */
>+		u8 slice_mask;
>+	} dbuf;
>+
>+#define DEFINE_FLAG(name) u8 name:1
>+	DEV_INFO_DISPLAY_FOR_EACH_FLAG(DEFINE_FLAG);
>+#undef DEFINE_FLAG
>+
>+	/* Global register offset for the display engine */
>+	u32 mmio_offset;
>+
>+	/* Register offsets for the various display pipes and transcoders */
>+	u32 pipe_offsets[I915_MAX_TRANSCODERS];
>+	u32 trans_offsets[I915_MAX_TRANSCODERS];
>+	u32 cursor_offsets[I915_MAX_PIPES];
>+
>+	struct {
>+		u32 degamma_lut_size;
>+		u32 gamma_lut_size;
>+		u32 degamma_lut_tests;
>+		u32 gamma_lut_tests;
>+	} color;
>+};
>+
>+#endif
>diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
>index 959a4080840c..96f6bdb04b1b 100644
>--- a/drivers/gpu/drm/i915/intel_device_info.h
>+++ b/drivers/gpu/drm/i915/intel_device_info.h
>@@ -29,7 +29,7 @@
>
> #include "intel_step.h"
>
>-#include "display/intel_display_limits.h"
>+#include "display/intel_display_device.h"
>
> #include "gt/intel_engine_types.h"
> #include "gt/intel_context_types.h"
>@@ -182,25 +182,6 @@ enum intel_ppgtt_type {
> 	func(unfenced_needs_alignment); \
> 	func(hws_needs_physical);
>
>-#define DEV_INFO_DISPLAY_FOR_EACH_FLAG(func) \
>-	/* Keep in alphabetical order */ \
>-	func(cursor_needs_physical); \
>-	func(has_cdclk_crawl); \
>-	func(has_cdclk_squash); \
>-	func(has_ddi); \
>-	func(has_dp_mst); \
>-	func(has_dsb); \
>-	func(has_fpga_dbg); \
>-	func(has_gmch); \
>-	func(has_hotplug); \
>-	func(has_hti); \
>-	func(has_ipc); \
>-	func(has_overlay); \
>-	func(has_psr); \
>-	func(has_psr_hw_tracking); \
>-	func(overlay_needs_physical); \
>-	func(supports_tv);
>-
> struct intel_ip_version {
> 	u8 ver;
> 	u8 rel;
>@@ -278,33 +259,7 @@ struct intel_device_info {
> 	DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG);
> #undef DEFINE_FLAG
>
>-	struct {
>-		u8 abox_mask;
>-
>-		struct {
>-			u16 size; /* in blocks */
>-			u8 slice_mask;
>-		} dbuf;
>-
>-#define DEFINE_FLAG(name) u8 name:1
>-		DEV_INFO_DISPLAY_FOR_EACH_FLAG(DEFINE_FLAG);
>-#undef DEFINE_FLAG
>-
>-		/* Global register offset for the display engine */
>-		u32 mmio_offset;
>-
>-		/* Register offsets for the various display pipes and transcoders */
>-		u32 pipe_offsets[I915_MAX_TRANSCODERS];
>-		u32 trans_offsets[I915_MAX_TRANSCODERS];
>-		u32 cursor_offsets[I915_MAX_PIPES];
>-
>-		struct {
>-			u32 degamma_lut_size;
>-			u32 gamma_lut_size;
>-			u32 degamma_lut_tests;
>-			u32 gamma_lut_tests;
>-		} color;
>-	} display;
>+	struct intel_display_device_info display;

nice!! this greatly reduces the header needs for xe so we can eventually
stop including the whole display world just to have the types needed
available. If we go one step further and make it an opaque pointer, then
it'd  be even better, but we'd need a mass conversion everywhere using
display. It seems to be going the right directions


Reviewed-by: Lucas De Marchi <lucas.demarchi at intel.com>



Lucas De Marchi

>
> 	/*
> 	 * Initial runtime info. Do not access outside of i915_driver_create().
>-- 
>2.40.0
>